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Fatigue strength and Hardness of EN 6060, T66 - F22

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I work for an automotive supplier.

We supply a latching base plateu made from extruded AL alloy, EN-AW-6060, T66, hardened to F22. We had a failure/breakage and are looking now for property data, specifically Brinell hardness range and fatigue strength and fatigue curves. If someone could get me that information or guide me to a website (subscription sites are fine) I would really appreciate it.

Thank you in advance

Henry Schwutke, Engineering
1st tier automotive - Rochester Hills, Michigan


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The original manufacturer of the aluminum should be able to give you some or all of that data. But any data is averages of the material that was tested. Extrusions may not vary as much as castings, but will vary wildly in strength, even when cut from the same extrusion. Has to do with the uniformity of the mix and the extrusion process itself. You may have to go to a stronger alloy.

James Watts
- Navarre, Florida


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